Copyright is held by the owner/author(s). Publication rights licensed to the VLDB Endowment. This work is licensed under the Creative Commons BY-NC-ND 4.0 International License.
Except where otherwise noted, this item's license is described as Copyright is held by the owner/author(s). Publication rights licensed to the VLDB Endowment. This work is licensed under the Creative Commons BY-NC-ND 4.0 International License.